Granted Patent
Utility
US 5,260,545 · App. 07/693,912
Welding power supply
Inventors:
John C. West, Thomas D. Chandler
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Apr 29, 1991
Inventors
John C. West
Thomas D. Chandler
Assignee (at issue)
Scepter Manufacturing, LLC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.